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Flight delays from Chinese airports were reduced last year, despite an increase in flight numbers, data showed.

Data from air traffic management revealed that 77.9 percent of scheduled flights were on time last year, a 2-percentage-point improvement from 2010.

Flights between Beijing and Guangzhou were the worst in terms of punctuality, at 66 percent, followed by flights between Beijing and Shanghai at 73 percent, said an official with the Air Traffic Management Bureau under the Civil Aviation Administration of China (CAAC). The official declined to give his name.

Still, "significant improvements" have been made on the two routes, he said, as the proportion of punctual Beijing-Shanghai flights increased by 30 percentage points, and those on Beijing-Guangzhou routes by 11 percentage points, compared to 2010, he said.

Li Jun, deputy director of the CAAC, told a working conference earlier that airlines, airports and air traffic control authorities have boosted cooperation to reduce delays, and capacity at major airports, such as Beijing, Nanjing and Chongqing, were expanded last year.

Flight punctuality will be targeted to improve by 2 percentage points this year, and average flight delays should be reduced by at least 5 percent.

Analysts said the opening of Beijing-Shanghai high-speed rail link in June, which halved rail transport time to less than five hours, has pushed airlines to improve performances.

Despite the improvement, however, passengers said that they have not noted any changes for the better.

Still, civil aviation officials, experts and airlines argued that the improvement was hard-earned, given increasingly busy air traffic.

The country's air transport fleet increased by 150 planes last year. The Air Traffic Management Bureau recorded a growth of 7.6 percent in the number of flights it handled, which reached 6.07 million last year.

"Just like on the highway, more cars will cause traffic jams. More planes flying in the sky will also produce congestion and delays," said Li Xiaojin, professor at Civil Aviation University of China.

The authority needs to control the purchase of planes and refine air traffic management to allow more planes to pass through quickly, he added.

（中國日報網英語點津 Rosy 編輯）

About the broadcaster:

Lee Hannon is Chief Editor at China Daily with 15-years experience in print and broadcast journalism. Born in England, Lee has traveled extensively around the world as a journalist including four years as a senior editor in Los Angeles. He now lives in Beijing and is happy to move to China and join the China Daily team.